You will get Full Stack Developer for Software Valuation
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I will perform a comprehensive software valuation of your solution, reviewing the architecture, code quality, scalability, security, and maintainability.
As a Full Stack Developer specializing in MERN Stack Development, React, Next.js, Node.js, and MongoDB, I'll assess both the frontend and backend, identify technical risks, estimate modernization efforts, and provide actionable recommendations to improve performance and maximize your software's long-term value.
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I will perform a comprehensive software valuation of your solution, reviewing the architecture, code quality, scalability, security, and maintainability.
As a Full Stack Developer specializing in MERN Stack Development, React, Next.js, Node.js, and MongoDB, I'll assess both the frontend and backend, identify technical risks, estimate modernization efforts, and provide actionable recommendations to improve performance and maximize your software's long-term value.
full stack developer react next.js node full stack developer react node.js full stack developer react node full stack developer react node.js full stack developer React next.js node full stack developer react next.js node full stack developer react next.js node full stack developer
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Programming Languages
JavaScript, TypeScript, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $200
These options are included with the project scope.
$200
- Delivery Time 7 days
- Number of Revisions 0
24 reviews
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KC
Kateryna C.
Jul 22, 2026
MERN Developer / Full Stack Developer ( React, Next.js, MongoDB, Node.js ) for ERP validation
Working with Igor was a great experience. He quickly understood my requirements, provided thoughtful recommendations, and delivered exactly what was promised on time. Communication was clear and professional throughout the project, and the quality of the work exceeded my expectations.
Thank you for the excellent job!
Thank you for the excellent job!
NH
Nick H.
May 9, 2026
Document Processing Engineer - C#/.NET/Azure (30 hrs/week, 3+ months)
Consummate professional, extremely talented. I hope to get the opportunity to work with Igor again!
NH
Nick H.
Feb 17, 2026
Consulting Session - PowerBI Design & Development
Igor was courteous yet clear and articulate regarding what aspects of the project I needed consulting help on were not useful, were useful and which required work--for the latter, he even provided concrete, actionable directions!
MS
Michael S.
Feb 24, 2025
Microsoft SQL Azure Expert + Adyen & Chargebee Integration
I recently had the pleasure of working with Reenbit on a critical development project for our company, and I must say, their performance was nothing short of exceptional. From the outset, the Reenbit team, led by Igor, demonstrated a deep understanding of our technical requirements and business objectives.
Igor was a standout throughout the project. His expertise in software development, coupled with his problem-solving skills, made him an invaluable asset. He consistently went above and beyond, ensuring that not only were our expectations met but exceeded. His ability to manage complex challenges and his attention to detail ensured a smooth and successful project execution.
Igor was a standout throughout the project. His expertise in software development, coupled with his problem-solving skills, made him an invaluable asset. He consistently went above and beyond, ensuring that not only were our expectations met but exceeded. His ability to manage complex challenges and his attention to detail ensured a smooth and successful project execution.
EJ
Eric J.
Feb 6, 2025
Developer/team to build proof of concept: online dashboard and AI chatbot
The Reenbit team was excellent to work with. They listened well to our business situation, and were flexible to address our specific needs. Communication was great - they were easy to talk with, contact and schedule meetings with. They priced themselves competitively. We worked with them primarily on building a solution with various Microsoft products and they exhibited a strong knowledge of what was available and how they could be leveraged. I'm so glad we got to work with them.
About Igor
Full Stack Developer | .NET developer Azure | Power Platform Power BI
100%
Job Success
Lviv, Ukraine - 6:27 pm local time
I build enterprise full stack, .NET, MERN systems, Azure cloud architectures, and Microsoft SharePoint + Power Platform solutions that eliminate manual work - full stack developer and software engineer with 12+ years of experience, 7,000+ hours on Upwork, 60+ completed contracts, and a 100% Job Success Score.
If your team runs on Excel and manual approvals, I help you automate it properly with AI-powered tools and scalable web platform architecture, as a full stack developer, web developer, and React developer, I cover the entire stack.
Microsoft Power Platform (workflow automation)
I help teams modernize operations with Microsoft Power Platform without turning it into an unmaintainable patchwork. Power Apps + Power Automate + Microsoft SharePoint + Dynamics 365: apps, workflows, and integrations that eliminate manual work. Whether you need a full app development cycle or Automation for Microsoft 365, I deliver connected solutions built by a full stack developer who gets both backend logic and business process.
Back-End Engineering ( .NET developer )
My deep expertise lies in the .NET Core ecosystem and Node.js, where I've worked with .NET Framework, ASP.NET Core, C#, Entity Framework, and Microsoft SQL Server as a full stack developer.
Key achievements:
▪️Delivered 50+ enterprise-level full-stack applications, improving business process by 35–70% through automation, optimized logic, and scalable architectures.
▪️Built 80+ RESTful and SOAP-based APIs powering real-time integrations with CRMs, ERPs, payment gateways, IoT devices, and mobile apps.
▪️Optimized 250+ SQL databases, including data warehouse architectures, increasing query performance by up to 10× and ensuring 99.9% uptime in production.
▪️Designed secure, cloud-native systems using Azure App Services, Azure Functions, Azure Event Hub, Azure Service Bus, Azure SQL, and Azure Application Insights across 15+ production environments.
Front-End & Full Stack Web Application Development
On the front end, I design and build responsive web application interfaces using HTML5, CSS3, JavaScript, TypeScript, Bootstrap, React, Next.js, and Angular (modern MERN stack). As a React developer, web developer, and full stack developer, I focus on performance. I also work as a WordPress developer and as a mobile app developer building fast sites and cross-platform apps with React Native.
Key achievements:
▪️Delivered 40+ full-stack and responsive web platform applications using Angular, Next.js, and React, integrated with ASP.NET Core back ends.
▪️Built 30+ MERN stack (React, Next.js) solutions, improving user engagement and retention by up to 60%.
▪️Shipped 8+ cross-platform mobile apps (iOS/Android) using React Native as a mobile app developer.
▪️Delivered full stack developer-level hybrid solutions: React, Next, or Angular front ends powered by C# / ASP.NET / MongoDB services, reducing costs and improving time-to-market for SaaS platform and web application projects.
Azure Cloud, Power BI & Data Analytics
I design complete Azure cloud environments and end-to-end data analyst-grade analytics systems:
Azure infrastructure:
▪️Azure App Services, Azure SQL, Azure Cosmos DB (with MongoDB API compatibility)
▪️Azure Storage, Azure Active Directory, Key Vault
▪️CI/CD pipelines with Azure DevOps and GitHub Actions
▪️AWS migrations and hybrid cloud architectures
▪️Azure Data Factory pipelines for ETL and data warehouse integration
Power BI / Looker Studio & dashboard analytics:
▪️30+ automated dashboard solutions with KPI Dashboards for operations, finance, and logistics
▪️Data analyst-ready models integrating Azure SQL, Azure Data Factory, and Azure Data Lake
▪️Report automation replacing manual Excel and Tableau-style workflows with live Power BI dashboards
▪️Looker Studio integration for clients on Google ecosystem
▪️Data visualization layers connecting data warehouse, Azure SQL, MongoDB, and operational databases into unified KPI Dashboards, cutting reporting turnaround by up to 3 days per cycle
AI-Powered Solutions & Modern App Development
As a full stack developer, I integrate AI-powered into enterprise workflows:
▪️Chatbot development using OpenAI API, and custom NLP pipelines for customer support and ERP assistants
▪️AI-powered document processing and classification integrated with Microsoft SharePoint, Power Automate, and MERN stack ( React, Next.js, MongoDB, Node.js )
▪️Tool development for automation and reporting, replacing manual work
▪️As a mobile app developer, I extend automation and AI layers into mobile apps on iOS and Android
💡Business Impact
▪️+40% e-commerce sales through optimization and React / Next.js checkout redesign
▪️25% lower infrastructure costs for a SaaS full-stack platform after migrating to microservices using .NET Core + Azure
▪️Reduced manual reporting time by 80% via automated Power BI, Looker Studio + Azure Data Factory pipelines
▪️Delivered automation system solutions cutting manual data entry by 60%.
Steps for completing your project
After purchasing the project, send requirements so Igor can start the project.
Delivery time starts when Igor receives requirements from you.
Igor works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Review
Review your software, business goals, documentation, and current challenges to understand the project's context.
Provide Recommendations
Identify technical risks, improvement opportunities, modernization options, and estimate the effort required for enhancements.